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2660550460 = 225133027523
BaseRepresentation
bin1001111010010100…
…1100011100111100
320212102021222002221
42132211030130330
520422100103320
61120000455124
7122634206611
oct23645143474
96772258087
102660550460
1111458a1a37
1262301a4a4
13335283619
141b34c4508
151088913aa
hex9e94c73c

2660550460 has 12 divisors (see below), whose sum is σ = 5587156008. Its totient is φ = 1064220176.

The previous prime is 2660550457. The next prime is 2660550469. The reversal of 2660550460 is 640550662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660550469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66513742 + ... + 66513781.

It is an arithmetic number, because the mean of its divisors is an integer number (465596334).

Almost surely, 22660550460 is an apocalyptic number.

2660550460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2660550460 is an abundant number, since it is smaller than the sum of its proper divisors (2926605548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2660550460 is a wasteful number, since it uses less digits than its factorization.

2660550460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133027532 (or 133027530 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 2660550460 is about 51580.5240376637. The cubic root of 2660550460 is about 1385.6615519158.

The spelling of 2660550460 in words is "two billion, six hundred sixty million, five hundred fifty thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 133027523 266055046 532110092 665137615 1330275230 2660550460